Across
- 2. Alternate form of a gene, influencing traits in organisms
- 5. Cells that lack a nucleus and other membrane- bound organelles
- 6. Diversity in observable characteristics within populations
- 7. The transfer of genetic material between populations
- 9. Cells that have a nucleus and membrane-bound organelles
- 11. When a species completely dies off from the Earth
- 14. Organisms´s characteristic change to survive in environments
- 18. Genetic variation resulting from small founding population´s isolation
- 20. Species that emerge through reproductive isolation and genetic divergence over time
Down
- 1. Process where organisms best adapted to their environment survive and reproduce
- 3. Reproduction involving the fusion of gametes from two parents.
- 4. Involves the production of an offspring from a single parent organism
- 8. Provides insight into past life forms and environments
- 10. A form of asexual reproduction in single-celled organisms
- 12. The random change in allele frequencies in a population over time
- 13. Microscopic single-celled organisms, some causing diseases, some beneficial
- 15. Species evolve in response to each other´s adaptations
- 16. When a population size drastically reduces temporarily
- 17. Intentional breeding to produce desired traits in offspring
- 19. Traits that help organisms survive and reproduce in their environment